Puri, S. G. “Lombardy Poplar (<I>Populus nigra< I> Lin. Var <I>Fastigiata< I> Desf.) in India”. Indian Forester 71, no. 12 (December 1, 1945): 423–425. Accessed December 25, 2025. https://indianforester.co.in/index.php/indianforester/article/view/22425.